Elevator beam stable in supporting

Abstract

The invention relates to the technical field of elevators, in particular to a stable-supporting elevator beam which comprises a main beam and a reinforcing beam, the main beam is erected on the reinforcing beam, the stable-supporting elevator beam further comprises a longitudinal positioning assembly, a transverse positioning assembly and an expanding welding assembly, the longitudinal positioning assembly is arranged on the main beam, the transverse positioning assembly is arranged on the reinforcing beam, and the expanding welding assembly is arranged on the main beam. The main beam and the reinforcing beam are connected through the longitudinal positioning assembly and the transverse positioning assembly, and the expansion welding assembly is arranged between the main beam and the reinforcing beam. By means of the longitudinal positioning assembly, the transverse positioning assembly and the expanding welding assembly, a welding gap can be reserved after the main beam and the reinforcing beam are connected, the welding area after welding is effectively enlarged, and the bearing capacity of the lower beam is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of elevator technology, specifically to a stable elevator beam. Background Technology

[0002] The elevator car's lower beam is the core load-bearing structure that supports the car body and load. It often adopts a combination design of channel or box-shaped main beams and reinforcing beams. Different lengths and cross-sections of beam components need to be flexibly matched according to load requirements. Welding can achieve rigid connection of each beam, ensuring the overall structural strength and stability, and meeting the mechanical requirements for vertical car operation.

[0003] In the process of developing this application, the applicant discovered that, in order to ensure the welding effect between the main beam and the reinforcing beam, the contact surfaces of the main beam and the reinforcing beam need to be stably fitted before welding to avoid gaps appearing on the contact surfaces after welding, which would affect the welding effect. However, this would limit the welding area to the edge of the contact surface between the main beam and the reinforcing beam. When the car is fully loaded or subjected to impact loads (such as emergency braking or safety gear operation), stress concentration occurs at the weld, which is prone to cracking or tearing, leading to local instability of the lower beam and a significant reduction in the overall load-bearing capacity, thus causing a safety accident.

[0004] Therefore, in order to solve the above problems, a stable elevator beam is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a stable elevator beam that solves the problem of limited welding area between the main beam and the reinforcing beam, which affects the load-bearing capacity of the lower beam. By incorporating longitudinal positioning components, transverse positioning components, and weld expansion components, a weld gap can be left after the main beam and the reinforcing beam are connected, effectively increasing the weld area after welding and ensuring the load-bearing capacity of the lower beam.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A stable elevator beam includes a main beam and a reinforcing beam. The main beam is mounted on the reinforcing beam. The beam also includes a longitudinal positioning component, a transverse positioning component, and a welding expansion component. The longitudinal positioning component is mounted on the main beam, and the transverse positioning component is mounted on the reinforcing beam. The main beam and the reinforcing beam are connected by the longitudinal positioning component and the transverse positioning component. The welding expansion component is located between the main beam and the reinforcing beam.

[0008] Preferably, the longitudinal positioning component includes reinforcing ribs, which are L-shaped and two in number. The two reinforcing ribs are slidably disposed on both sides of the reinforcing beam and fixedly disposed at the bottom of the main beam. The bottom of the reinforcing ribs is provided with plug welding holes, and the diameter of the plug welding holes increases linearly from top to bottom.

[0009] Preferably, the lateral positioning component includes a spring, a push block, a positioning pin, and a support plate. The bottom of the main beam and the top of the reinforcing beam are respectively provided with a through hole and a positioning hole. The positioning pin is disposed through the through hole and the positioning hole. The push block is fixedly disposed at the bottom of the positioning pin. The spring is fixedly disposed at the bottom of the push block and its lower end is fixedly connected to the reinforcing beam. The support plate is disposed on the side wall of the positioning pin and fits against the bottom of the main beam. The upper surface of the push block fits against the reinforcing beam.

[0010] Preferably, the expansion welding assembly includes rib one and rib two, rib one is disposed at the bottom of the main beam, rib two is disposed at the top of the reinforcing beam, and the length of rib one and rib two in the vertical direction is equal to two-thirds of the distance between the main beam and the reinforcing beam.

[0011] Preferably, the plug welding hole includes hole one and hole two. Two holes two are provided and symmetrically arranged on both sides of hole one. Two heat dissipation holes are symmetrically opened inside the horizontal end of the reinforcing rib. Each heat dissipation hole penetrates hole one and the corresponding hole two. The height of the end of the heat dissipation hole located in hole one is lower than the height of the end located on the side of the reinforcing rib.

[0012] Preferably, there are two sets of rib one and rib two, and each set has multiple sets of rib one and rib two, with each set of rib one and rib two arranged alternately.

[0013] Preferably, the upper end of the positioning pin is symmetrically provided with two wedge-shaped surfaces, both of which face the length direction of the reinforcing beam.

[0014] Preferably, the wedge-shaped surface has multiple plug welding grooves, and the central axis of each plug welding groove is perpendicular to the corresponding wedge-shaped surface.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. By using the designed expansion welding components and alternating ribs 1 and 2, welding space is reserved between the main beam and the reinforcing beam. This transforms the connection between the main beam and the reinforcing beam from traditional planar butt welding to side fillet welding. This increases the welding area and creates an interlocking structure at the weld. Compared to planar welding, this structure can withstand tensile and shear forces better. Even if the weld fails, it can still form a physical barrier when the elevator stops suddenly or is subjected to a huge horizontal shear force from an impact, preventing the main beam from flying out or undergoing large displacement. This significantly improves the overall load-bearing capacity and operational safety of the elevator's lower beam.

[0017] 2. By using springs, after the main beam and the reinforcing beam are positioned and connected, the springs remain in a compressed state, so that the springs continuously apply a constant downward pressure to the bottom of the reinforcing beam. This changes the natural frequency of the reinforcing beam, effectively suppressing the "drumming" noise caused by the high-frequency vibration of the main beam and the side wall of the reinforcing beam when the elevator is running at high speed or under airflow disturbance, thereby improving the quietness and comfort of the elevator operation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a partial sectional view of the connection structure between the main beam and the reinforcing beam of the present invention.

[0020] Figure 3 This is a cross-sectional structural schematic diagram of the reinforcing rib plate of the present invention;

[0021] Figure 4 This is a schematic diagram of the connection structure between the main beam, the reinforcing beam, and the transverse positioning assembly of the present invention.

[0022] Figure 5 For the present invention Figure 2 Enlarged view of part A in the middle section;

[0023] Figure 6 This is a schematic diagram of the planar connection structure between the main beam and the reinforcing beam of the present invention.

[0024] In the diagram: 1. Main beam; 11. Through hole; 2. Reinforcing beam; 21. Positioning hole; 3. Longitudinal positioning assembly; 31. Reinforcing rib; 311. Heat dissipation hole; 32. Plug weld hole; 321. Hole 1; 322. Hole 2; 4. Lateral positioning assembly; 41. Spring; 42. Push block; 43. Positioning pin; 431. Wedge-shaped surface; 432. Plug weld groove; 44. Support plate; 5. Weld expansion assembly; 51. Rib 1; 52. Rib 2. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Please see Figures 1 to 6 This invention provides a stable elevator beam, the technical solution of which is as follows:

[0027] For details, please refer to Figure 1A stable elevator beam includes a main beam 1 and a reinforcing beam 2. The main beam 1 is mounted on the reinforcing beam 2. The beam also includes a longitudinal positioning component 3, a transverse positioning component 4, and a welding expansion component 5. The longitudinal positioning component 3 is mounted on the main beam 1, and the transverse positioning component 4 is mounted on the reinforcing beam 2. The main beam 1 and the reinforcing beam 2 are connected by the longitudinal positioning component 3 and the transverse positioning component 4. The welding expansion component 5 is located between the main beam 1 and the reinforcing beam 2.

[0028] As one embodiment of the present invention, refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The longitudinal positioning component 3 includes two L-shaped reinforcing ribs 31, which are slidably disposed on both sides of the reinforcing beam 2 and fixedly disposed at the bottom of the main beam 1. The bottom of each reinforcing rib 31 has a plug weld hole 32, the diameter of which increases linearly from top to bottom. The transverse positioning component 4 includes a spring 41, a push block 42, a positioning pin 43, and a support plate 44. Through holes 11 are respectively provided at the bottom of the main beam 1 and the top of the reinforcing beam 2. Positioning hole 21, positioning pin 43 is disposed through through hole 11 and positioning hole 21, push block 42 is fixedly disposed at the bottom of positioning pin 43, spring 41 is fixedly disposed at the bottom of push block 42 and its lower end is fixedly connected to reinforcing beam 2, support plate 44 is disposed on the side wall of positioning pin 43 and fits against the bottom of main beam 1, upper surface of push block 42 fits against reinforcing beam 2, two wedge-shaped surfaces 431 are symmetrically disposed at the upper end of positioning pin 43, both wedge-shaped surfaces 431 face the length direction of reinforcing beam 2.

[0029] Under the above conditions, before welding, the main beam 1 is placed at one end of the reinforcing beam 2 along the width direction of the reinforcing beam 2. The main beam 1 and the reinforcing beam 2 are connected by two L-shaped reinforcing ribs 31 on the main beam 1. The limiting effect of the two reinforcing ribs 31 prevents the main beam 1 and the reinforcing beam 2 from separating in the longitudinal direction. When the main beam 1 is blocked by the positioning pin 43 while moving along the length of the reinforcing beam 2, the main beam 1 continues to move. The bottom of the main beam 1 will press the wedge-shaped surface 431 at the upper end of the positioning pin 43, causing the positioning pin 43 to move downward under pressure, so that the bottom of the main beam 1 can pass over the upper end of the positioning pin 43. Since the lower end of the positioning pin 43 is fixedly connected to the spring 41 through the push block 42, the positioning pin 43 will compress the spring 41 by the push block 42 when it moves downward. When the through hole 11 at the bottom of the main beam 1 moves to be coaxial with the positioning pin 43, the spring 41 releases its elastic force and pushes the positioning pin 43 upward through the push block 42, so that the positioning pin 43 is inserted into the corresponding through hole 11, thereby achieving lateral positioning of the main beam 1 and preventing the main beam 1 and the reinforcing beam 2 from separating laterally. At this time, under the elastic force of spring 41, the support plate 44 on the positioning pin 43 lifts the main beam 1, leaving a welding space between the main beam 1 and the reinforcing beam 2, thereby increasing the welding area and ensuring the load-bearing capacity of the lower beam after welding. In addition, after the main beam 1 and the reinforcing beam 2 are connected, spring 41 is still in a compressed state. Since the reinforcing beam 2 is an I-shaped steel and the main beam 1 is a rectangular tube, the side walls of the main beam 1 and the reinforcing beam 2 are prone to high-frequency vibration (similar to the "drumming" effect) and generate noise under the rapid operation of the elevator or airflow disturbance. After welding, the positioning pin 43 is fixed, but the spring 41 at the bottom is still in a compressed state, which will continuously apply a downward constant pressure to the bottom of the reinforcing beam 2, thereby changing the natural frequency of the base plate and effectively suppressing the "drumming effect" vibration at the bottom of the reinforcing beam 2.

[0030] As one embodiment of the present invention, refer to Figure 1 , Figure 2 and Figure 5 The expansion welding assembly 5 includes rib 1 51 and rib 2 52. Rib 1 51 is located at the bottom of the main beam 1, and rib 2 52 is located at the top of the reinforcing beam 2. The vertical length of rib 1 51 and rib 2 52 is equal to two-thirds of the distance between the main beam 1 and the reinforcing beam 2. There are two sets of rib 1 51 and rib 2 52. Each set of rib 1 51 and rib 2 52 has multiple ribs. Each rib 1 51 and rib 2 52 is arranged alternately.

[0031] Under the aforementioned conditions, during welding, fillet welds are performed along the length of rib 1 51 and rib 2 52, on the intersecting sides of rib 1 51 and rib 2 52. This creates an "interlocking" weld between the main beam 1 and the reinforcing beam 2. Compared to planar butt welding, side fillet welds are better able to withstand tensile and shear forces, and the welding workspace is more convenient for the welding torch to enter. When the elevator stops suddenly or is impacted, a huge horizontal shear force is generated between the main beam 1 and the reinforcing beam 2 (attempting to make the main beam 1 and the reinforcing beam 2 slide relative to each other). This "interlocking" weld structure provides physical resistance. Even if all welds fail, the multiple interlocking ribs 1 51 and rib 2 52 will interlock with each other, preventing the main beam 1 from flying out or undergoing large displacement, further improving the load-bearing capacity of the elevator's lower beam and ensuring the safety of elevator operation.

[0032] As one embodiment of the present invention, refer to Figure 2 and Figure 3 The plug welding hole 32 includes hole one 321 and hole two 322. There are two holes two 322, which are symmetrically arranged on both sides of hole one 321. Two heat dissipation holes 311 are symmetrically opened inside the horizontal end of the reinforcing rib 31. Each heat dissipation hole 311 penetrates hole one 321 and the corresponding hole two 322. The height of the end of the heat dissipation hole 311 located in hole one 321 is lower than the height of the end located on the side of the reinforcing rib 31.

[0033] Under the above-mentioned conditions, on the one hand, while plug welding is performed using the plug welding hole 32, the shape of the plug welding hole 32 can also form a tenon and mortise structure between the welded reinforcing beam 2 and the reinforcing rib plate 31, thereby improving the connection strength between the reinforcing beam 2 and the reinforcing rib plate 31; on the other hand, during welding, some of the welding material can also enter the corresponding heat dissipation hole 311, further increasing the welding strength, while the heat dissipation hole 311 can be used to discharge the high-temperature exhaust gas generated during welding, avoiding the formation of bubbles in the weld, and effectively ensuring the airtightness of the weld.

[0034] As one embodiment of the present invention, refer to Figure 5 Multiple plug welding grooves 432 are provided on the wedge-shaped surface 431, and the central axis of each plug welding groove 432 is perpendicular to the corresponding wedge-shaped surface 431.

[0035] Under the above-mentioned conditions, plug welding can be performed between the positioning pin 43 at the end of the main beam 1 and the through hole 11. At the same time as plug welding, some of the welding material can also penetrate into the interior of the corresponding plug welding groove 432 during the high-temperature melting process, increasing the contact area between the weld point and the positioning pin 43, improving the welding strength, and ensuring the welding strength of the main beam 1 and the reinforcing beam 2 in the horizontal direction.

[0036] Working principle:

[0037] Before welding, the main beam 1 is clamped onto the reinforcing beam 2 along the width direction of the reinforcing beam 2 using two reinforcing ribs 31 in the longitudinal positioning component 3 to restrict longitudinal separation. Then, the main beam 1 is pushed along the length direction of the reinforcing beam 2, so that its bottom presses against the wedge-shaped surface 431 at the top of the positioning pin 43 in the transverse positioning component 4. This forces the positioning pin 43 to move downward against the elastic force of the bottom spring 41 until the through hole 11 at the bottom of the main beam 1 moves to be coaxial with the positioning pin 43. At this time, the spring 41 releases its elastic force and pushes the positioning pin 43 into the through hole 11 through the push block 42 to achieve transverse locking. At this time, the support plate 44 on the side wall of the positioning pin 43 lifts the main beam 1 under the elastic force of the spring 41, and the welding expansion component 5 forces a welding space to be reserved between the main beam 1 and the reinforcing beam 2. During welding, the welding expansion component 5 is alternately set up and down. The sides of multiple ribs 51 and 52 are filled with fillet welds to form an interlocking structure at the joint, which greatly increases the welding area and improves the shear resistance. At the same time, the fillet welds are made in conjunction with the fillet weld holes 32 at the bottom of the reinforcing rib plate 31 and the fillet weld grooves 432 on the wedge-shaped surface 431 of the positioning pin 43. After the weld cools, it forms a mortise and tenon-like structure, which further enhances the connection strength. During elevator operation, if the welding fails due to an impact, the interlocking ribs form a mechanical interlock through physical barriers to prevent the main beam 1 from flying out or undergoing large displacement. Moreover, since the spring 41 at the bottom remains compressed after welding, the constant pressure it continuously applies to the bottom of the reinforcing beam 2 changes the natural frequency of the base plate, thereby effectively suppressing the high-frequency vibration and noise caused by the "drum effect" under high-speed elevator operation or airflow disturbance.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A support-stable elevator beam, comprising a main beam (1) and a reinforcing beam (2), the main beam (1) being erected on the reinforcing beam (2), characterized in that: It also includes longitudinal positioning assembly (3), transverse positioning assembly (4) and expansion welding assembly (5), longitudinal positioning assembly (3) is arranged on the main beam (1), transverse positioning assembly (4) is arranged on the reinforced beam (2), the main beam (1) and the reinforced beam (2) are connected through longitudinal positioning assembly (3) and transverse positioning assembly (4), expansion welding assembly (5) is arranged between the main beam (1) and the reinforced beam (2).

2. A support-stabilized elevator beam according to claim 1, characterized in that: The longitudinal positioning assembly (3) includes a reinforcing rib plate (31), the reinforcing rib plate (31) is L-shaped and provided with two, two reinforcing rib plates (31) are respectively arranged on both sides of the reinforced beam (2) and are fixedly arranged on the bottom of the main beam (1), the bottom of the reinforcing rib plate (31) is provided with a plug welding hole (32), the hole diameter of the plug welding hole (32) increases linearly from top to bottom.

3. A braced and stabilized elevator beam according to claim 1, characterized in that: The transverse positioning assembly (4) includes a spring (41), a push block (42), a positioning pin (43) and a support plate (44), the bottom of the main beam (1) and the top of the reinforced beam (2) are respectively provided with a through hole (11) and a positioning hole (21), the positioning pin (43) is arranged through the through hole (11) and the positioning hole (21), the push block (42) is fixedly arranged at the bottom of the positioning pin (43), the spring (41) is fixedly arranged at the bottom of the push block (42) and the lower end is fixedly connected with the reinforced beam (2), the support plate (44) is arranged on the side wall of the positioning pin (43) and is attached to the bottom of the main beam (1), the upper surface of the push block (42) is attached to the reinforced beam (2).

4. A support-stabilized elevator beam according to claim 1, characterized in that: The expansion welding assembly (5) includes a rib one (51) and a rib two (52), the rib one (51) is arranged on the bottom of the main beam (1), the rib two (52) is arranged on the top of the reinforced beam (2), the length of the rib one (51) and the rib two (52) in the vertical direction is equal to two-thirds of the distance between the main beam (1) and the reinforced beam (2).

5. A braced and stabilized elevator beam according to claim 2, wherein: The plug welding hole (32) includes a hole one (321) and a hole two (322), the hole two (322) is provided with two and is symmetrically arranged on both sides of the hole one (321), the inside of the horizontal end of the reinforcing rib plate (31) is symmetrically provided with two heat dissipation holes (311), each heat dissipation hole (311) penetrates the hole one (321) and the corresponding hole two (322), the height of one end of the heat dissipation hole (311) in the hole one (321) is lower than the height of one end of the heat dissipation hole (311) in the side of the reinforcing rib plate (31).

6. A braced and stabilized elevator beam according to claim 4, wherein: The rib one (51) and the rib two (52) are provided with two groups, each group of the rib one (51) and the rib two (52) is provided with a plurality of, each rib one (51) and rib two (52) are arranged alternately.

7. A braced and stabilized elevator beam according to claim 3, wherein: The upper end of the positioning pin (43) is symmetrically provided with two wedge surfaces (431), the two wedge surfaces (431) are both towards the length direction of the reinforced beam (2).

8. A braced and stabilized elevator beam according to claim 7, characterized in that: A plurality of plug welding grooves (432) are arranged on the wedge surface (431), the central axis of each plug welding groove (432) is perpendicular to the corresponding wedge surface (431).

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